Martin Höchstädter
Martin Höchstädter (born March 1, 1883 in Munich ; † June 12, 1973 in Pully ) was a German engineer , who became Liechtenstein after his emigration . He was an internationally known cable specialist and inventor of the H-cable , a special form of high-voltage cable .
Live and act
Martin Höchstädter's parents, Heinrich Höchstädter (1846–1891) and Emma (* 1861; née Wormser) were Jewish merchants. From 1902 to 1906 he studied mechanical engineering and electrical engineering at the Technical University of Stuttgart , where Höchstädter was then assistant to Professor Wilhelm Dietrich (1852–1930) until 1907 . After various positions, he went to the Siemens-Schuckert cable factory in Berlin in 1909 .
In 1910, Martin Höchstädter was the first to publish measurements of dielectric losses in cables.
Shortly before the outbreak of World War I , he went on a study trip to the United States and from then on worked as a self-employed engineer. This is where Höchstädter registered his patent for non-glowing high-voltage cables (US Patent 1,199,789) in 1913, later also in Germany (DRP 288 446). A metallized shield on the individual wire insulation effects a radial alignment of the electrical field . The insulation is thus significantly less stressed than the belt cable and voltages of more than 20 kV are possible.
From 1921 Höchstädter had his office in The Hague . Here he invented a cable protection that causes a selective shutdown of the line in the event of a fault.
From 1925 he was in Brussels . In 1926 Höchstädter invented the pressure cable in order to prevent voids in the insulation caused by load fluctuations. Glow discharges took place in these cavities. In 1931 the first 66 kV line was laid in east London and Martin Höchstädter was awarded a silver medal by the Royal Society of Arts London.
On May 2, 1933, he acquired citizenship in Liechtenstein , from 1940 he lived in California , from 1948 in Tangier (Morocco) and from 1964 in Pully on Lake Geneva .
literature
- M. Höchstädter, W. Vogel, E. Bowden: The pressure cable, an advance in the construction of high-voltage cable systems . Electrotechnical Journal No. 71, Berlin 1932.
Web links
- Alumni of Martin Höchstädter at the University of Stuttgart , queried on May 28, 2012
| personal data | |
|---|---|
| SURNAME | Höchstädter, Martin |
| BRIEF DESCRIPTION | German-Liechtenstein cable specialist |
| DATE OF BIRTH | March 1, 1883 |
| PLACE OF BIRTH | Munich |
| DATE OF DEATH | June 12, 1973 |
| Place of death | Pully |